News Briefing for August 7. The Trump administration has taken further steps on purging Chinese tech in the United States, including Tencent and its popular communication app, WeChat. In response, TikTok released a statement threatening to sue the administration. Meanwhile, U.S. Secretary of State Mike Pompeo updated the campaign called “the Clean Network” yesterday. These actions mark a sharp escalation in the conflict between the U.S. and China in recent years.